/**
 */
package org.soyatec.tooling.gef.examples.shapes.provider;

import java.util.Collection;
import java.util.List;

import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.ResourceLocator;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
import org.eclipse.emf.edit.provider.IItemLabelProvider;
import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.IItemPropertySource;
import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
import org.eclipse.emf.edit.provider.ItemProviderAdapter;
import org.eclipse.emf.edit.provider.ViewerNotification;
import org.soyatec.tooling.gef.examples.shapes.Graph;
import org.soyatec.tooling.gef.examples.shapes.ShapesFactory;
import org.soyatec.tooling.gef.examples.shapes.ShapesPackage;

/**
 * This is the item provider adapter for a
 * {@link org.soyatec.tooling.gef.examples.shapes.Graph} object. <!--
 * begin-user-doc --> <!-- end-user-doc -->
 * 
 * @generated
 */
public class GraphItemProvider extends ItemProviderAdapter implements
        IEditingDomainItemProvider, IStructuredItemContentProvider,
        ITreeItemContentProvider, IItemLabelProvider, IItemPropertySource {
    /**
     * This constructs an instance from a factory and a notifier. <!--
     * begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    public GraphItemProvider(AdapterFactory adapterFactory) {
        super(adapterFactory);
    }

    /**
     * This returns the property descriptors for the adapted class. <!--
     * begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object) {
        if (itemPropertyDescriptors == null) {
            super.getPropertyDescriptors(object);

        }
        return itemPropertyDescriptors;
    }

    /**
     * This specifies how to implement {@link #getChildren} and is used to
     * deduce an appropriate feature for an
     * {@link org.eclipse.emf.edit.command.AddCommand},
     * {@link org.eclipse.emf.edit.command.RemoveCommand} or
     * {@link org.eclipse.emf.edit.command.MoveCommand} in
     * {@link #createCommand}. <!-- begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    public Collection<? extends EStructuralFeature> getChildrenFeatures(
            Object object) {
        if (childrenFeatures == null) {
            super.getChildrenFeatures(object);
            childrenFeatures.add(ShapesPackage.Literals.GRAPH__SHAPES);
            childrenFeatures.add(ShapesPackage.Literals.GRAPH__CONNECTIONS);
        }
        return childrenFeatures;
    }

    /**
     * <!-- begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    protected EStructuralFeature getChildFeature(Object object, Object child) {
        // Check the type of the specified child object and return the proper
        // feature to use for
        // adding (see {@link AddCommand}) it as a child.

        return super.getChildFeature(object, child);
    }

    /**
     * This returns Graph.gif. <!-- begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    public Object getImage(Object object) {
        return overlayImage(object,
                getResourceLocator().getImage("full/obj16/Graph"));
    }

    /**
     * This returns the label text for the adapted class. <!-- begin-user-doc
     * --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    public String getText(Object object) {
        return getString("_UI_Graph_type");
    }

    /**
     * This handles model notifications by calling {@link #updateChildren} to
     * update any cached children and by creating a viewer notification, which
     * it passes to {@link #fireNotifyChanged}. <!-- begin-user-doc --> <!--
     * end-user-doc -->
     * 
     * @generated
     */
    @Override
    public void notifyChanged(Notification notification) {
        updateChildren(notification);

        switch (notification.getFeatureID(Graph.class)) {
        case ShapesPackage.GRAPH__SHAPES:
        case ShapesPackage.GRAPH__CONNECTIONS:
            fireNotifyChanged(new ViewerNotification(notification,
                    notification.getNotifier(), true, false));
            return;
        }
        super.notifyChanged(notification);
    }

    /**
     * This adds {@link org.eclipse.emf.edit.command.CommandParameter}s
     * describing the children that can be created under this object. <!--
     * begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    protected void collectNewChildDescriptors(
            Collection<Object> newChildDescriptors, Object object) {
        super.collectNewChildDescriptors(newChildDescriptors, object);

        newChildDescriptors.add(createChildParameter(
                ShapesPackage.Literals.GRAPH__SHAPES,
                ShapesFactory.eINSTANCE.createEllipse()));

        newChildDescriptors.add(createChildParameter(
                ShapesPackage.Literals.GRAPH__SHAPES,
                ShapesFactory.eINSTANCE.createRectangle()));

        newChildDescriptors.add(createChildParameter(
                ShapesPackage.Literals.GRAPH__CONNECTIONS,
                ShapesFactory.eINSTANCE.createSolidLine()));

        newChildDescriptors.add(createChildParameter(
                ShapesPackage.Literals.GRAPH__CONNECTIONS,
                ShapesFactory.eINSTANCE.createDashedLine()));
    }

    /**
     * Return the resource locator for this item provider's resources. <!--
     * begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    public ResourceLocator getResourceLocator() {
        return ShapesEditPlugin.INSTANCE;
    }

}
